A linen cloth kept in Turin's cathedral has been read once more, this time through the traces of life that settled on its fibers over centuries. Researchers led by Gianni Barcaccia reexamined samples first taken in 1978 and found a crowded record of medieval and modern DNA from people, animals and plants, with nearly 40 percent of the human signal tracing to Indian lineages. Whether that points to trade, handling or an origin remains an open question, and the older debate over when the relic was made and whether it wrapped a crucified man is still unsettled.
DNA Study Links Shroud of Turin to India, but the Origin Claim Remains Speculative
Why does a DNA study on a relic make headlines?
Because the shroud is so famous. Barcaccia's team reanalyzed samples taken in 1978 and found about 40 percent of the human DNA traced to Indian lineages. That echoes what they suggested in 2015.
So does that mean the cloth came from India?
No, and the researchers don't quite say so. They say the yarn possibly was produced in India. The article offers trade, with Romans importing linen from near the Indus valley, or historical contact, as explanations.
What else was on the cloth?
A lot. Cats, dogs, cattle, fish, insects, wheat, tomatoes, potatoes. Some of those crops reached Europe only after exploration of Asia and the Americas, so they're clearly recent contamination.
Which is the real problem. The team wrote that contact with many people challenges identifying the shroud's original DNA. If the cloth is that contaminated, a 40 percent figure may say as much about who handled it as where it began.
Does this touch the 1988 radiocarbon dating?
Not directly. That dating gave 1260 to 1390, and some Christian scholars still contest it.
The article doesn't say this DNA work supports or undermines that date. It also doesn't explain how the 40 percent was calculated, so I'd treat the number as the team's own result, not an established fact.
So what's the takeaway?
That the cloth has had a long, crowded life, and its story is still being argued.
El Pulso
- Reanalysis of 1978 samples has turned a famous relic into a crowded archive of DNA from many people, animals and plants.
- Nearly 40 percent of the human genetic material traces to Indian lineages, sparking speculation about Roman-era linen trade.
- Researchers warn that so many handlers have touched the cloth that recovering any original genetic signal is far harder.
- The 1988 radiocarbon dating placing the cloth between 1260 and 1390 is still contested, leaving the authenticity question unresolved.
A linen cloth kept in Turin's cathedral has been read once more, this time through the traces of life that settled on its fibers over centuries. Researchers led by Gianni Barcaccia reexamined samples first taken in 1978 and found a crowded record of medieval and modern DNA from people, animals and plants, with nearly 40 percent of the human signal tracing to Indian lineages. Whether that points to trade, handling or an origin remains an open question, and the older debate over when the relic was made and whether it wrapped a crucified man is still unsettled.
A linen cloth measuring 4.4 meters by 1.1 meters, kept in the Cathedral of Saint John the Baptist in Turin, has been examined again, this time through the DNA left on its threads. Gianni Barcaccia of the University of Padova led the reanalysis of material collected in 1978, the same samples his team had used in 2015 when they first suggested the shroud might have come from India.
The cloth held a dense mix of genetic traces. Domestic and farm animals, wild deer and rabbits, fish, insects and plants such as wheat, tomatoes and potatoes all appeared, some crops reaching Europe only after explorers traveled to Asia and the Americas. Human DNA came from many individuals who had handled the shroud, including the team that studied it in 1978. Nearly 40 percent traced to Indian lineages, which the researchers link to possible Roman linen trade or historical contact. They framed this as a possibility, not proof of origin.
The relic has long been disputed. It appeared in France in 1354, moved to Turin in the 16th century, and became famous in 1898 when Secondo Pia's photograph revealed a far clearer figure. The 1988 radiocarbon dating placed its making between 1260 and 1390, a result some scholars still contest. For believers, veneration continues, and the new work shows how many hands and lives have touched the cloth, making its original signal harder to recover.
A linen cloth 4.4 meters long and 1.1 meters wide, kept in the Cathedral of Saint John the Baptist in Turin, has now been read again, this time through the DNA that settled on it. Gianni Barcaccia of the University of Padova in Italy led the reanalysis. He and his colleagues went back to material collected from the cloth in 1978, the same samples they used in 2015 when they first suggested the shroud might have originated in India.
What they found was crowded. The cloth had preserved a wide mix of medieval and modern DNA from plants, animals and people. The animal traces included domestic cats and dogs, and farm animals such as chickens, cattle, goats, sheep, pigs and horses. Wild deer and rabbits turned up, along with fish including grey mullet and Atlantic cod, plus other ray-finned species. Insects such as flies and aphids were present, and so were arachnids. Plant DNA included carrots, wheat species, peppers, tomatoes and potatoes. Some of these crops reached Europe only after explorers began traveling to Asia and the Americas.
The human DNA drew the most attention. The team identified genetic material from numerous individuals who had handled the shroud, including the team that worked on it in 1978. The researchers wrote that the cloth had touched multiple people, which challenges any attempt to identify the shroud's original DNA. Nearly 40 percent of the human DNA came from Indian lineages. Barcaccia and his colleagues suggested this might reflect historical interactions, or Romans importing linen from regions near the Indus valley. They wrote that the traces point to potentially extensive exposure of the cloth around the Mediterranean, and to the possibility that the yarn was produced in India. That is a possibility, not a finding of origin.
The object at the center of this is one of Christianity's best known and most disputed relics. It was first located in France in 1354 and has been in Turin since the 16th century. Many believe it is the linen used to wrap Jesus's body after the crucifixion. It bears a faint image of a bearded, long-haired, roughly middle-aged man with a moustache, seen from front and back, with the face and back of the head near the cloth's center. Reddish stains resemble blood and wounds, and the image shows swollen cheekbones and bruised, abraded shoulders. The relic became widely famous in 1898, when the Italian lawyer and photographer Secondo Pia photographed it and the figure appeared far clearer than it does to the naked eye.
The dating question remains unsettled. In 1988, radiocarbon and accelerator mass spectrometry testing placed the cloth's making between 1260 and 1390, which rules out Jesus as the man imprinted on it. Some Christian scholars still contest that result. Others point to earlier references. The Pray Codex, a Hungarian illuminated manuscript dated to about 1192 to 1195, shows Jesus's body at the anointing, and scholars note similarities such as thumbs hidden behind the palms. In 1203, the French crusader Robert de Clari recorded that a church in Constantinople, My Lady St. Mary of Blachernae, displayed every Friday a cloth believed to be Christ's burial shroud, with his figure visible.
The Gospels complicate the picture. John 19:40 describes the body wrapped in strips of linen, not a single cloth. Matthew and Mark mention no cloth at the empty tomb. Luke 24:12 and John 20:5 and 20:6 describe linen strips, and John 20:7 mentions a sudarium. A 2025 study in Textiles noted that none of the four Gospels mentions the burial shroud after the Resurrection, and the Acts of the Apostles is silent on any such cloth too.
For believers, the veneration continues regardless. The late Pope Francis prayed before the shroud during its most recent exposition in 2015. The new DNA work does not settle origin or authenticity. It shows how many hands, animals and crops have touched the cloth, which makes recovering any original genetic signal harder, while the 1988 dating stays contested by some scholars.
Citas Notables
The Shroud came into contact with multiple individuals, thereby challenging the possibility of identifying the original DNA of the Shroud.— Gianni Barcaccia and colleagues, study authors